/**
 * @description Encodes 3 bytes into base64 encoding and appends the result to the StringBuffer.
 * @param {StringBuffer} result  The StringBuffer where the result will be appended.
 * @param {number} c  The first byte to be encoded.
 * @param {number} [b] The second byte to be encoded (optional).
 * @param {number} [a] The third byte to be encoded (optional).
 * @returns {void} returns nothing
 */
export function encode3Bytes(result: StringBuffer, c: number, b?: number | undefined, a?: number | undefined): void;
/**
 * @description base64 chars
 */
export const base64EncodingChars: "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
import StringBuffer from "./StringBuffer";